Hinge.



D. W. LENAHAN.

HINGE.

APPLICATION FILED SEPT.19,1908. 922,605. Patented May 25, 1909.

. I? I Z, J I H 9, Z7 '5 rnsirnn srarngsjgarnr OFFICE.

DANIEL WILTON LENAHAN, OF NEW YORK, N. Y.

HINGE.

To all whom it may concern:

Be it known that I, DANIEL IVILTON LEN- AIIAN, a citizen of the United States of America, residing at No. 2% West One Hundred and "hirty-first street, borough of Iiianhattan, city, county, and State of New York, have invented certain new and useful Inuprovements in Hinges, of which the following is a specification.

My invention relates particularly to hinges having the pintle formed as a separate piece, that is to say, to the class of hinges in which the pintle is not integral or cast in part with either of the leaves.

In strap, hasp and other hinges of the class referred to, the pintle consists usually of a piece of round iron or steel wire which is secured in position connecting the leaves, by having its ends, which project beyond the knuckles, upset or headed. In the use of such hinges on doors, gates, boxes, bins, etc., locks afford little or no protection, as the knuc les of the hinges are usually exposed and by filing off one of the headed ends of each pintle, the latter can then be readily pulled or driven out, permitting the door, gate or the like to be opened with little or no ditliculty. This is a common method of robbing tool chests, boxes and lockers.

It is the object of the present invention to overcome this point of weakness in hinges by providing the pintle thereof, at one or more points intermediate its ends, with a projection of such shape as to make the removal of the pintle by pulling or driving it through the hinge knuckles, either impossible or an extremely difficult operation.

Several forms of pintles suitable for carrying my invention into effect, are illustrated in the accompanying drawings. 1 wish it understood, however, that I do not limit myself to either the exact details of construction or the arrangement of parts shown, as various changes may be made therein without departing from the spirit and scope of my invention.

In the drawings: Figure 1 is a plan view of a well known form of strap hinge show ing my invention applied. Fig. 2 is a sectional view thereof on the line s 8 of Fig. 1. Fig. 3 is a similar View on the line s s Specification of Letters Patent.

Application filed September 19, 1908.

Patented May 25, 1909.

Serial No. 453,892.

of Fig. 1. Fig. 4t illustrates a modification. Fig. 5 is a similar view of a second modification. Fig. 6 shows a third modification.

Referring now to the drawings, the leaves of the hinge are represented at l, the knuekles at 2 and the pintle at 3, all parts or members being relatively assembled in the usual manner.

Lying between the knuckles and secured fast to the pintle by casting, pressure or in any other suitable manner, there are collars at, preferably of the diameter of the knuczles. In the hinge shown, two of such collars are employed which serve, as will be seen, to effectually prevent the removal of the pintle and as a result, upsetting or heading up the ends thereof as indicated at 5, is therefore optional.

As the expense of manufacturing pintles of the form shown in Figs. 1, 2 and 3 would probably increase the cost somewhat over the hinge as at present constructed, I have devised several cheaper but equally effective forms which will now be described.

In Fig. 4, the metal forming the knuckle is cut away at 6 to provide an opening 7 through which the bent-up central portion 8 of the pintle projects and serves to hold the same against movement in the direction of its length.

In Fig. 5 the construction is practically the same as that last described, the only dif ference being that the bend made in the pintle is shorter and does not project beyond the knuckle.

In Fig. 6 a common strap hinge is shown, the central knuckle of which has been struck a blow and an indentation formed of sufficient depth to give the pintle a sharp bend about centrally of its length, which serves to hold it against longitudinal movement.

The operation and many important advantages of my invention will be apparent from the foregoing description.

Having, therefore, described my invention, I claim:

1. A hinge, the knuckles of which are formed by bending up the adjoining ends of the leaves, together with a cooperating pintle shaped to interlock with one of the knuckles.

2. A hinge comprisingcooperating leaves ally disposed relatively to said spaced knuc and a pintle connecting the leaves, said pinkles only.- tle being of uniform diameter throughout its In testimony whereof I affix iny signalength and shaped to interlock with one of ture, in the presence of two witnesses. 5 the hinge knuckles. DANIEL WILTON LENAHAN.

3. A hinge comprising cooperating leaves, lVitnesses: a knuckle of one leaf lying between spaced M. K. LQTTUN, knuckles of the other leaf and a pintle axi- M. G. CRAWFORD. 

